Stopper for drain outlets



May 18, 1937. c. e. HICKS STOPPER FOR DRAIN OUTLETS Filed Jan. 18, 1935Patented May 18 1937 UNITED STTES PATENT OFFICE],

Carl G. Hicks, Chicago, Ill.

Application January 18, 1936, Serial No. 59,675

9 Claims.

This invention relates to that type of stoppers for the drain outlet ofhousehold sinks, bath tubs and the like, consisting of a central mainmember of metal or like rigid material and marginal border member offlexible material such as india rubber, and this improvement has for itsmain object:

To provide a structural formation of a two part closure cover for thedrain outlets of the type above referred to, wherein a substantialnon-rickable connection between the two portions of the device isattained in an effective and economical manner, as will hereinafter morefully appear.

In the accompanying drawing:

Fig. l is a bottom plan illustrating the preferred arrangement of partsin this improvement.

Fig. 2 is a central section of the same on line 2-2, Fig. 1.

Fig. 3 is a bottom plan of the device, showing a modified form of thenotched formation shown in Fig. l omitted.

Like reference numerals indicate like parts in the different views.

In its preferred form, as shown in the drawing, 25 this improvement indrain outlet stoppers or covers comprises a rigid central body I ofsheet metal of a concavo-convex shape, the margin of which is formed inthe manner hereinafter described adapted to effect a substantialnon-leaking attachment of an associated annular border member 2 offlexible material such as india rubber.

The main and material feature of this improvement involves a formationof the border portion of the central main body I aforesaid, with aplurality of annular return bends or folds 3 and 4, the configuration ofa flattened letter S, with the intermediate fold 3 in contact with thebottom face of the main body I, and with the lower fold 4 in spacedrelation to the aforesaid intermediate fold 3, in order to provide aspace for the reception of the inner portion of the annular elasticborder member 2 aforesaid, with the same held in place by a closure ofthe fold 4 in a direction towards the fold 3 aforesaid.

Another material feature of this improvement comprises a formation ofthe aforesaid lower fold 4 of the plurality of bends and foldsaforesaid, with a series of marginal notches adapted to provide a likeseries of inedependent marginal flat prongs 5 that are adapted toprovide a more ready manipulation in the assembly of the device, wherethe main body is formed of sheet metal or plate metal of an extra thickgauge, when greater rigidity of the main body I is desired.

Still another feature of this improvement involves the formation of theouter margin of the annular and flexible outer member 2 of the device,with an orificecl projecting portion or extension 6 for the purpose of aready handling of 5 the device, as well as for hanging up thereof whennot in use.

Having thus fully described my invention, what I claim as new, is:

l. A stopper for drain outlets, comprising a central main body member ofsheet metal having a concavo-convex formation with its margin formedwith a plurality of return bend folds, and an annular outer plate memberof india rubber or like flexible material, the inner margin of saidouter annular member being arranged and held in place in a recessbetween the intermediate and the lowermost of the aforesaid folds.

2. A stopper for drain outlets comprising a central main body member ofsheet metal having a conoavo-covex formation with its margin formed witha plurality of return bend folds, the lowermost said fold being notchedto provide a plurality of outwardly extending prongs, and an annularouter plate member of rubber or like flexible material, the inner marginof said an nular member being arranged and held in place ina recessbetween the intermediate and the lowermost of said folds.

3. A suction type stopper for drain outlets, comprising a central mainbody member of sheet metal having a conca vo-convex formation with itsmargin formed with a plurality of return bend folds, the lowermost saidfold being notched to provide a plurality of outwardly extending prongs,and an annular outer plate member of rubber or like flexible material,the inner margin of said annular member being arranged and held in placein a recess between the intermediate and the lowermost of said folds,the said annular member being provided with a tab-like extension on itsouter border whereby the said annular member may be flexed to admit airor water to the drain and break the suction of the stopper.

4. A stopper for drain outlets comprising a central main body member ofsheet metal hav ing a concavo-convex formation with its margin formedwith a plurality of return bend folds, the lowermost said fold beingnotched to provide a plurality of outwardly extending prongs, and anannular outer plate member of rubber or like flexible material, theinner margin of said annular member being arranged and held in place ina recess between the intermediate and the lowermost of said folds, saidannular flexible member 55 having an orificed tab-like extension on itsouter border.

5. A suction type sink stopper comprising a metal disc having anintegrally channeled edge portion and a rubber annulus having its innerperipheral region seated and clamped in said channeled portion.

6. A suction type sink stopper comprising a metal disc having anintegrally channeled edge portion and a rubber annulus having its innerperipheral region seated and clamped in said channeled portion, saidannulus having a suction breaking tab extended therefrom.

7. A suction type sink stopper comprising a concavo-convex sheet metaldisc having an integrally formed channeled portion in its peripheraledge, and an annulus of rubber or like flexible material clamped at itsinnermost peripheral edge portions in said channeled portion of thedisc.

8. A suction type sink stopper comprising a concave-convex sheet metaldisc having an integrally formed channeled portion in its peripheraledge, and an annulus of rubber or like flexible material clamped at itsinnermost peripheral edge portions in said channeled portion of thedisc, said annulus having a tab-like extension for flexing the latter tobreak the suction of the stopper.

9. A suction type sink stopper comprising a concavo-convex body memberhaving its outer edge portion bent back upon itself to form a returnbend providing a channeled portion opening outwardly of the said edgeand having an annular apron of flexible material clamped into the saidchanneled portion, the said apron having a manually engageable extendedportion for flexing the same to break the suction of the stopper.

CARL G. HICKS.

